MN
Mabel Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mabel Nelson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Hannah & Peter — first a spouse (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Nelson |
| Given Name | Mabel |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Hours Worked | 4 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1914 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mabel | Age | Birth yr |
|---|---|---|---|---|
| Judith Nelson | Daughter | — | ~1940 | |
| Mabel Nelson | Spouse | — | 26 | ~1914 |
| Roger Nelson | Head | — | 27 | ~1913 |
Census Appearances
1920
Cook, Illinois
Daughter, age 5
Cook, Illinois · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Mabel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 15
Cook, Illinois · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Mabel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Spouse, age 26
Cook-County, Illinois · implied b. ~1914 — 3 household members
| Surname | Nelson |
| Given Name | Mabel |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Hours Worked | 4 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mabel Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Hannah Nelson (~0.92 confidence) and father Peter Nelson (~0.92 confidence) and father Peter Nelson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Hannah Nelson
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
Peter Nelson
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Peter Nelson
b. ~1886
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mabel Nelson
Spouse · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00936-00223)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph Clark | 48 | Head | Letter Carrier | Illinois |
| 42 | Marie Clark | 38 | Wife | — | Illinois |
| 43 | Robert Clark | 7 | Son | — | Illinois |
| 44 | Louis Mason | 33 | Head | Clerk | Illinois |
| 45 | Eleanor Mason | 34 | Wife | — | Illinois |
| 46 | Arthur Mason | 7 | Son | — | Illinois |
| 47 | Marilyn Mason | 3 | Daughter | — | Illinois |
| 48 | Jack Tobias | 31 | Head | Buyer | Illinois |
| 49 | Florence Tobias | 30 | Wife | — | Illinois |
| 50 | Sandra Tobias | 4 | Daughter | — | Illinois |
| 51 | George Rand | 33 | Head | Doctor | Illinois |
| 52 | Jenny Rand | 68 | Mother | — | Austria |
| 53 | Hans Mervis | 39 | Head | Mechanic | Germany |
| 54 | Gerda Mervis | 34 | Wife | — | Germany |
| 55 | Gerda Mervis | 4 | Daughter | — | Illinois |
| 56 | Clarence Koeber | 37 | Head | Baker | Illinois |
| 57 | Roselyn Koeber | 23 | Wife | — | Illinois |
| 58 | Roselle Koeber | 1 | Daughter | — | Illinois |
| 59 | Alexander Shure | 36 | Head | Branch Manager | Lithuania |
| 60 | Shirley Shure | 26 | Wife | — | New York |
| 61 | Karen Shure | 2 | Daughter | — | Illinois |
| 62 | Roger Nelson | 27 | Head | Clerk | Illinois |
| 63 | Mabel Nelson THIS PERSON | 26 | Wife | — | Illinois |
| 64 | Judith Nelson | 0 | Daughter | — | Illinois |
| 65 | Ralph Gottman | 26 | Head | Meter Inspector | Illinois |
| 66 | Virginia Gottman | 27 | Wife | — | Illinois |
| 67 | Sandra Jo Gottman | 2 | Daughter | — | Illinois |
| 68 | Helen Bernstein | 30 | Head | — | Illinois |
| 69 | Emma Bernstein | 51 | Sister | Secretary | Illinois |
| 70 | Julius Berg | 32 | Head | Salesman | Illinois |
| 71 | Lillian Berg | 31 | Wife | — | Illinois |
| 72 | Richard Berg | 0 | Son | — | Illinois |
| 73 | Harry Holmes | 51 | Head | Janitor | Illinois |
| 74 | Ralph Millrath | 28 | Son | Clerk | Illinois |
| 75 | Helen Millrath | 20 | Daughter | — | Illinois |
| 76 | Walter B Ferron | 25 | Head | Stenographer | Indiana |
| 77 | Nallen B Ferron | 1 | Son | — | Illinois |
| 78 | Mary Agnes Laney | 60 | Mother | — | Indiana |
| 79 | Gust Johnson | 64 | Head | Janitor | Sweden |
| 80 | Elin Johnson | 54 | Wife | — | Sweden |
Pedigree Summary
Mabel
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)